Portuguese Cut Round Eternity Band | .30ct Each | Lab Diamonds

Rooted in Portuguese heritage and brought to life through our own diamond growing and cutting process, the Portuguese Cut is a personal expression of our craft. We grow each lab diamond ourselves, then carefully cut it to reveal the intricate faceting and distinctive character that define this stone.

Set in a full eternity band of .30ct Portuguese cut rounds, every turn reveals another pattern of reflections — a wedding band you can keep discovering.

Diamond Details

• Shape: Portuguese cut round
• Setting: Full eternity
• Number of diamonds: 16 diamonds (based on a size 6)
• Individual size: .30ct each
• Total carat weight: 4.80ct TW (based on a size 6)
• Colour: E–F
• Clarity: VVS2–VS1
• Diamond type: Lab-grown

Diamond count and total carat weight may vary slightly with ring size to maintain comfort and proportion.

Design & Finish

• Clean, timeless silhouette designed for everyday wear
• Comfort-fit profile for a smooth, effortless feel
• Designed to complement Diamondboi engagement rings or stand confidently on its own

Metal Options

• 18KT White Gold
• 18KT Yellow Gold
• 18KT Rose Gold

Custom finishes and profiles are available upon request.

Sizing & Customization

Ring sizes are available in ¼ and ½ sizes for a precise fit. Please include your exact ring size and any specific requests in the notes at checkout.

Production Time

Each wedding band is custom made to order in our Toronto studio. Please allow 4–6 weeks for production prior to shipping.

Explore more women's lab diamond wedding bands, or pair this band with a lab-grown diamond engagement ring.

For over 20 years, Diamondboi has designed and handcrafted fine jewellery for clients who value quality, integrity, and timeless design.

Every piece is created with intention — balanced proportions, secure settings, and craftsmanship meant to last a lifetime.

Jewellery is personal — and tastes evolve.

That’s why Diamondboi offers a lifetime upgrade promise on both lab and natural diamonds.

• Upgrade your diamond at any time
• Receive full credit for what you originally paid
• Simply pay the difference toward your new piece
• No pressure. No loss of value

We believe your diamond should grow with you.

This upgrade policy applies to diamond engagement ring purchases.

1. Order confirmation and review
2. Design and sizing confirmation (if needed)
3. Crafting begins
4. Final inspection
5. Secure, fully insured delivery

All orders ship via trackable courier with signature required.
For high-value orders, our team may reach out to confirm details — this ensures everything is perfect and secure.